This column marks the end of my year writing the daily MediaPost TV Blog. Given the perpetual advances in digital technology, changing consumer tastes and lifestyles, demographic shifts and so much else, there is no predicting what TV will be year to year. TV may be an extraordinary platform today, but those of us who remember when three networks, PBS and a handful of local stations were more than enough know how lucky we were to be able to experience it then. Those were certainly grand times for advertisers as well. But these are glory days for programming too.